What’s the deal with gluten sensitivity? Gluten sensitivity as a proposed disease showed up in the scientific literature in the past few years. The key here is proposed, because there was evidence it might exist, but it remained in a scientific grey area because there was not a known mechanism behind it.

But enough people had already decided or wanted to decide gluten was bad that they took the proposed disease and ran with it, producing and selling a large volume of scientifically dubious diet books featuring “gluten sensitivity”.

"This whole gluten intolerance thing is just a Western upper middle class fad. People are just orthorexic. Why would gluten intolerance increase all the sudden?"

Well, actually it's not a Western upper middle class fad. People in poor countries can be celiac, but they just die and people think it's from something else. When you are a refugee wasting away from chronic diarrhea, that's not so abnormal unfortunately. When you are in Central Illinois and suffering from the same, it is abnormal and you see a doctor and hopefully get a diagnosis.